RkFast

So I had to have a tire broken down to fix a flat...went to one of the best wheel/tire shops in the area. They use a Corghi tire machine, designed NOT to scratch rims, but nonetheless, Ive now got a nice circular scratch all the way around the outer lip right where the rubber meets the wheel, itself. Its not deep at all, just a surface scratch and barely noticeable. But my worry is....will I now get corrosion or oxidizing in there.

Thoughts?